Search found 548 matches

by DavidP
Mon Jul 15, 2024 8:00 pm
Forum: This is SolarChat !!
Topic: 15 July 2024, Mac 8", Ha HR, AR13738
Replies: 8
Views: 191

Re: 15 July 2024, Mac 8", Ha HR, AR13738

Lovely image
by DavidP
Fri Jul 12, 2024 11:41 pm
Forum: This is SolarChat !!
Topic: 35 minutes of madness on July 11
Replies: 10
Views: 718

Re: 35 minutes of madness on July 11

Fantastic. What a dynamic event
by DavidP
Thu Jul 11, 2024 3:23 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Triband erf
Replies: 6
Views: 811

Re: Triband erf

Ca K (393nm) is difficult for most people to see visually. For solar astronomy it is pretty much for imaging. A Triband filter won’t help you to see 393nm. These filters are used for energy reduction. If you already have a Herschel wedge, an ERF before it won’t really accomplish anything other than ...
by DavidP
Wed Jul 10, 2024 9:39 pm
Forum: This is SolarChat !!
Topic: Ca-k close ups from today
Replies: 12
Views: 879

Re: Ca-k close ups from today

These are really nice Dennis. Nice work.
I’d also be interested in hearing more detail about you process of dealing with SA.
by DavidP
Sat Jul 06, 2024 10:56 pm
Forum: This is SolarChat !!
Topic: Full Disc 06-07-2024
Replies: 16
Views: 1177

Re: Full Disc 03-07-2024

Andele!
Super disks. Your Ha disc has a really nice three-dimensional quality to it.
by DavidP
Fri Jul 05, 2024 4:48 am
Forum: SPoD Archive
Topic: Flare outburst along equatorial eastern limb, July 4th
Replies: 20
Views: 806

Re: Flare outburst along equatorial eastern limb, July 4th

These are wonderful images. Well done.
by DavidP
Fri Jul 05, 2024 4:48 am
Forum: This is SolarChat !!
Topic: Flare outburst along equatorial eastern limb, July 4th
Replies: 17
Views: 954

Re: Flare outburst along equatorial eastern limb, July 4th

These are wonderful images. Well done.
by DavidP
Mon Jul 01, 2024 4:16 pm
Forum: This is SolarChat !!
Topic: 010724 AR13727 Ha HR iStar204 vs C11, (Addition C11 AR3727)
Replies: 18
Views: 959

Re: 010724 AR13727 Ha HR iStar204 vs C11)

That is a great comparison Val. A lot of us assume a refractor will do better, but you obviously have the seeing and the skills to show what a c11 can do.
What focal length was the c11 working with?
by DavidP
Sat Jun 29, 2024 10:42 pm
Forum: This is SolarChat !!
Topic: 29.6.24: AR3727 and 3719 in H-alpha
Replies: 13
Views: 1063

Re: 29.6.24: AR3727 and 3719 in H-alpha

Dennis. That first image is absolutely fantastic.
Extremely sharp and beautiful contrast.
by DavidP
Sat Jun 29, 2024 4:20 pm
Forum: This is SolarChat !!
Topic: Spain 2024-06-26
Replies: 27
Views: 802

Re: Spain 2024-06-26

Wonderful disk Alexandra.
Enjoy sunny España!
by DavidP
Fri Jun 28, 2024 11:25 pm
Forum: This is SolarChat !!
Topic: AR210/F50 only with Quark combo - 28.06.
Replies: 19
Views: 670

Re: AR210/F50 only with Quark combo - 28.06.

Petr. Is your Istar objective the “regular” achromat or the Ha optimized?
by DavidP
Fri Jun 28, 2024 8:51 pm
Forum: This is SolarChat !!
Topic: June 27 2024 - Quantumania
Replies: 10
Views: 469

Re: June 27 2024 - Quantumania

Simon2940 wrote: Fri Jun 28, 2024 4:26 pm
Dennis wrote: Fri Jun 28, 2024 10:38 am Great stuff Simon, as always.
How does the Quantum compare against your Quark apart of the price?

I'm waiting on for an adapter from RAFCAMERAS to show up so I can get the rig ported onto the 204mm, which will be the big test.
I’m excited to see that.
Congratulations on the new etalon
by DavidP
Fri Jun 28, 2024 12:02 am
Forum: This is SolarChat !!
Topic: AR3719 in Ca-k
Replies: 20
Views: 824

Re: AR3719 in Ca-k

Fantastic Dennis
by DavidP
Thu Jun 27, 2024 8:18 pm
Forum: Solar Reference Library
Topic: The Solar Observers Meeting is upon us! Soleye300 will be there.
Replies: 11
Views: 594

Re: The Solar Observers Meeting is upon us! Soleye300 will be there.

That’s great news that the presentation was in English. I’m looking foreword to seeing it
by DavidP
Thu Jun 27, 2024 8:18 pm
Forum: This is SolarChat !!
Topic: The Solar Observers Meeting is upon us! Soleye300 will be there.
Replies: 22
Views: 1291

Re: The Solar Observers Meeting is upon us! Soleye300 will be there.

That’s great news that the presentation was in English. I’m looking foreword to seeing it
by DavidP
Wed Jun 26, 2024 7:15 pm
Forum: This is SolarChat !!
Topic: An active sun on June 20/24
Replies: 6
Views: 343

Re: An active sun on June 20/24

Great set of images.
That first prom image is fantastic!
by DavidP
Sat Jun 22, 2024 4:04 pm
Forum: This is SolarChat !!
Topic: AR3712 and AR3713 Calcium June 18, 2024
Replies: 21
Views: 740

Re: AR3712 and AR3713 Calcium June 18, 2024

Wow Franco. Gorgeous details.
by DavidP
Sat Jun 22, 2024 3:21 am
Forum: This is SolarChat !!
Topic: Sunspots Filaments & Prom Close Ups
Replies: 11
Views: 539

Re: Sunspots Filaments & Prom Close Ups

Very very nice images with a good hand in you processing.
by DavidP
Fri Jun 21, 2024 4:44 pm
Forum: This is SolarChat !!
Topic: First light 150mm Maksutov-cassegrain h alpa
Replies: 13
Views: 571

Re: First light 150mm Maksutov-cassegrain h alpa

This is really a nice image. Great detail and contest as well.
by DavidP
Wed Jun 19, 2024 6:25 pm
Forum: This is SolarChat !!
Topic: Morning session and AR200 - 18.06.
Replies: 12
Views: 451

Re: Morning session and AR200 - 18.06.

Agreed. That last one is dynamic
by DavidP
Tue Jun 18, 2024 6:37 pm
Forum: This is SolarChat !!
Topic: 6-16-24 Ha images with the 9.25”
Replies: 7
Views: 409

Re: 6-16-24 Ha images with the 9.25”

Thank you all.
Dennis. I used a 3x telecentric , SS etalon, then a .4x reducer.
by DavidP
Mon Jun 17, 2024 2:26 pm
Forum: This is SolarChat !!
Topic: AR3712 G Band
Replies: 26
Views: 919

Re: AR3712 G Band

That is a wonderful image Nic. Very nice details
by DavidP
Mon Jun 17, 2024 2:26 pm
Forum: SPoD Archive
Topic: AR3712 G Band
Replies: 29
Views: 748

Re: AR3712 G Band

That is a wonderful image Nic. Very nice details
by DavidP
Mon Jun 17, 2024 3:03 am
Forum: This is SolarChat !!
Topic: 6-16-24 Ha images with the 9.25”
Replies: 7
Views: 409

6-16-24 Ha images with the 9.25”

I had hoped for better seeing, but where I am in the summertime in the mountains the best seeing tends to dissipate by the time the sun is high enough to be out of the atmospheric distortion. I’ve also noticed that this SCT can take a while to settle down.
IMG_1602.png
IMG_1602.png (5.53 MiB) Viewed 409 times
IMG_1601.png
IMG_1601.png (6.27 MiB) Viewed 409 times
by DavidP
Sun Jun 16, 2024 6:21 pm
Forum: This is SolarChat !!
Topic: Tall prom today - Ha Sun June 12, 2024
Replies: 25
Views: 708

Re: Tall prom today - Ha Sun June 12, 2024

Woah!
That first capture is great!
Very nice mosaic too
by DavidP
Sun Jun 16, 2024 5:44 pm
Forum: This is SolarChat !!
Topic: 15.6.2024: AR3709 and 3712 close up in H-alpha
Replies: 10
Views: 479

Re: 15.6.2024: AR3709 and 3712 close up in H-alpha

Wonderful details there Dennis
by DavidP
Sun Jun 16, 2024 5:41 pm
Forum: This is SolarChat !!
Topic: Sun FD in H-Alpha, CaK and Continuum June 11th 2024
Replies: 11
Views: 301

Re: Sun FD in H-Alpha, CaK and Continuum June 11th 2024

Really nice disks. Well done.
I especially liked the Ha
by DavidP
Sat Jun 15, 2024 3:42 pm
Forum: This is SolarChat !!
Topic: Cak DS - Lunt + Alluxa (Jun 7th and 8th ), with proms.
Replies: 13
Views: 688

Re: Cak DS - Lunt + Alluxa (Jun 7th and 8th ), with proms.

I don’t see the Alluxa CaK 1.5 A on their website. I see the 1.0A.
by DavidP
Fri Jun 14, 2024 1:00 am
Forum: This is SolarChat !!
Topic: 11.6.2024: AR3709 close up in H-alpha (update 13.6.24)
Replies: 14
Views: 663

Re: 11.6.2024: AR3709 close up in H-alpha (update 13.6.24)

Wonderful images Dennis. You’ve got your set-up very well dialed in. The contrast is excellent.
by DavidP
Thu Jun 13, 2024 4:21 am
Forum: This is SolarChat !!
Topic: Midday sun with solar Newton 180/F7-F42 - 12.06.
Replies: 20
Views: 648

Re: Midday sun with solar Newton 180/F7-F42 - 12.06.

Great images and congratulations on and fine scope. I love the focusing primary.
Looking at that active area today the bright circular area had me convinced that I had some strange reflection or an off band area. Great to see it in detail in your image.
Do you cut your long support bars with a cnc?
by DavidP
Mon Jun 10, 2024 9:10 pm
Forum: This is SolarChat !!
Topic: Exciting morning, post flare loops animation and images 6/10/2024
Replies: 26
Views: 649

Re: Exciting morning, post flare loops animation and images 6/10/2024

That is just a fantastic animation. Very nice catch
by DavidP
Mon Jun 10, 2024 6:31 pm
Forum: This is SolarChat !!
Topic: Midday sun with ISTAR 228/F9 10.06.
Replies: 12
Views: 690

Re: Midday sun with ISTAR 228/F9 10.06.

What kind of exposure times are you able to use with that setup?
by DavidP
Mon Jun 10, 2024 5:51 pm
Forum: This is SolarChat !!
Topic: Midday sun with ISTAR 228/F9 10.06.
Replies: 12
Views: 690

Re: Midday sun with ISTAR 228/F9 10.06.

Just stunning images.
Your mount seems to be able to handle it.
Did you make the mount?
And the amazing telescope was it all done by hand or on a cnc?
by DavidP
Sat Jun 08, 2024 9:40 pm
Forum: This is SolarChat !!
Topic: Ha narrowband closeups
Replies: 12
Views: 424

Re: Ha narrowband closeups

Thank you all.
So many of you have been very inspiring and helpful with questions.
by DavidP
Sat Jun 08, 2024 5:07 pm
Forum: This is SolarChat !!
Topic: M1,2 Flare 08-06-2024 Novosibirsk
Replies: 12
Views: 527

Re: M1,2 Flare 08-06-2024 Novosibirsk

Wow.
Great flare catch. I love the angle of it.
by DavidP
Fri Jun 07, 2024 11:15 pm
Forum: This is SolarChat !!
Topic: Ha narrowband closeups
Replies: 12
Views: 424

Ha narrowband closeups

I did some imaging during the last two days with my 150 mm and my SS RG18 followed by a 40.
IMG_1547.png
IMG_1547.png (3.12 MiB) Viewed 424 times
IMG_1549.png
IMG_1549.png (3.92 MiB) Viewed 424 times
IMG_1546.png
IMG_1546.png (3.95 MiB) Viewed 424 times
IMG_1548.png
IMG_1548.png (1.41 MiB) Viewed 424 times
by DavidP
Fri Jun 07, 2024 3:05 am
Forum: This is SolarChat !!
Topic: Sol in Hα - 2nd June 2024
Replies: 8
Views: 504

Re: Sol in Hα - 2nd June 2024

Very nice.
My favorite is the first one as well
by DavidP
Wed Jun 05, 2024 8:46 pm
Forum: Solar Software
Topic: Firecapture horizontal lines
Replies: 0
Views: 680

Firecapture horizontal lines

I know a lot of people have this issue and it’s been discussed. I only see it when I’m using gamma. Often rebooting the program helps for a little while, but it always comes back. Rebooting the program also makes me lose any flats I have made.
Is there an update that has addressed this issue?
by DavidP
Mon Jun 03, 2024 7:52 am
Forum: This is SolarChat !!
Topic: Sun:Cak-White light-H-alpha:from Olegs with love UKRAINE
Replies: 507
Views: 94278

Re: Sun:Cak-White light-H-alpha:from Oleg in UKRAINE

Lovely.
I especially like that first image!
by DavidP
Sat Jun 01, 2024 4:03 am
Forum: This is SolarChat !!
Topic: AR3697 & AR3691 in H-alpha
Replies: 11
Views: 585

Re: AR3697 & AR3691 in H-alpha

Very nice images with excellent contrast.
You did well processing.
by DavidP
Thu May 30, 2024 4:55 pm
Forum: This is SolarChat !!
Topic: Some extreme details with the AR200/F8.5 - 21.05.
Replies: 40
Views: 2791

Re: Some extreme details with the AR200/F8.5 - 21.05.

pupak wrote: Mon May 27, 2024 5:28 am Good luck in that a person is satisfied with what he has and does not deal with what he cannot have.
Good luck. And wisdom.
Your words are words to live bye
by DavidP
Thu May 30, 2024 1:21 pm
Forum: This is SolarChat !!
Topic: 29th May 2024 Mak 8" Ha HR DS
Replies: 15
Views: 821

Re: 29th May 2024 Mak 8" Ha HR DS

These are great images.
What type of etalons?
Have you made any modifications to pass more light?
by DavidP
Tue May 28, 2024 11:12 pm
Forum: This is SolarChat !!
Topic: Sunspots with 150 mm refractor
Replies: 14
Views: 587

Re: Sunspots with 150 mm refractor

That is a very nice image with nice detail.
Do you have a version that’s not inverted?
by DavidP
Tue May 28, 2024 1:40 am
Forum: This is SolarChat !!
Topic: EX3664
Replies: 9
Views: 437

Re: EX3664

Gorgeous images.
Very well done
by DavidP
Mon May 27, 2024 11:16 pm
Forum: This is SolarChat !!
Topic: Fireworks on the limb - returning AR3664
Replies: 8
Views: 410

Re: Fireworks on the limb - returning AR3664

Gorgeous images. Very dramatic
by DavidP
Mon May 27, 2024 11:12 pm
Forum: This is SolarChat !!
Topic: Sonne in CaK 26-05-2024!
Replies: 9
Views: 602

Re: Sonne in CaK 26-05-2024!

Wonderful images. Both the contrast and detail.
I also really like how you add the full disk for reference. Nice presentation.
by DavidP
Mon May 27, 2024 8:47 pm
Forum: This is SolarChat !!
Topic: X2.9 Flare & Coronal Rain in CaK 27th May
Replies: 23
Views: 1363

Re: X2.9 Flare & Coronal Rain in CaK 27th May

Fantastic capture Mark. You have really upped the Ca prominence standard.
Was this the SE limb? AR3664 coming around?
by DavidP
Sun May 26, 2024 12:29 am
Forum: Solar Scope Modifications
Topic: Polarizing Filters
Replies: 18
Views: 4046

Re: Polarizing Filters

I’m having a huge glare problem that I assume is coming from between my two stacked Lunt 40 mods.
I’m wondering, what a good option is for a circular polarizer and adapting it between the two T2 fittings. I’m of course wanting to pass as much light as possible, but also keep the path short.